20492381

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5237}}^1$

素因数の和:5300

約数の個数: 16

約数和(自身を含む): 25812864

約数和(自身を除く): 5320483

約数列:

[1, 7, 13, 43, 91, 301, 559, 3913, 5237, 36659, 68081, 225191, 476567, 1576337, 2927483, 20492381]

約数ペア:

[(1, 20492381), (7, 2927483), (13, 1576337), (43, 476567), (91, 225191), (301, 68081), (559, 36659), (3913, 5237)]